Seattle Seahawks RB DeeJay Dallas (ankle), CB Jayson Stanley (hamstring), OG Mike Iupati (neck), TE Greg Olsen (foot) and OT Duane Brown (knee) did not participate in practice Thursday, Dec. 31. OT Brandon Shell (ankle), S Ryan Neal (hip), S Damarious Randall (foot), RB Rashaad Penny (knee) and LB Shaquem Griffin (hamstring) were limited during practice. S Jamal Adams (hand), DT Bryan Mone (ankle), DT Jarran Reed (chest) and DE Carlos Dunlap (foot) fully participated in practice.